Safety wagon-nut.



H. E. OLIVER.

SAFETY WAGON NUIK. APPLIOATION FILED JULY s, 1910.

Patented May 30, 1.911.

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UNITED STATES PATENT OFFICE.

HERMAN E. OLIVER, 0F HUNTINGTON, WEST VIRGINIA, ASSIGNOR OF ONE-HALF T0F. W. JONES, 0F HUNTINGTON, WEST VIRGINIA.

SAFETY WAGON-NUT.

Specification of Letters Patent.

Patented May 30, 1911.

Application filed July 5, 1910. Serial No. 570,370.

To all whom it may concern:

Be it known-that I, HERMAN E. OLIVER, a citizen of the United States,residing at Huntington, in the county of Cabell and State of `WestVirginia, have invented new and useful Improvements in Safety Wagon-Nuts, of which the following is a specification.

^ This invention relates to nut locks and particularly to that typewhich is adapted for use upon axle stubs.

The object of the invention is the provision of means which will rigidlyhold the nut to the stub, so that it is impossible to move with relationthereto, and further means for concealing the nut so that it cannot beengaged to accidentally turn the nut upon the axle stub.A

Further objects of the invention will appear as the Jfollowing specificdescription is read in connection with the accompanying drawing, whichforms a part of this application, and in which Figure 1 is a perspectiveView of an axle stub, showing the nut locking device applied; Fig. 2 isa longitudinal section therethrough; Fig. 3 is a transverse sectiontaken on the line 3 3 of Fig. 2. Fig. 4 is a detail longitudinal sectionshowing the device applied to the dust cap.

Referring more particularly to the drawing, 1 represents an axle stubwhich is threaded upon its outer end to receive the usual blind nut 2having an inner annular flange 3. Between the circular and threadedportions of the axle 1, the stub is squared, as at 4, to enter a squaredopening 5 in the bottom of a cup-like washer 6 which is internallythreaded, as shown. This washer is held in place upon the squaredportion of the stub by means of the nut which, when threaded onto theaxle, has its annular flange 3 engaging the bottom and holding the sameagainst the shoulder 7 formed on the axle. The nut 2 is prevented frommovement by an externally threaded nut 8 which surrounds the nut andseats upon the top of the annular iiange 3. This nut 8 is provided witha pair of diametrically opposite notches 9whereby a Spanner may beapplied thereto to thread the same into the washer 6. If desired, a dustcap may be threaded into the washer, as shown, so as to abut against thenut 8 and thereby doubly insure the disengagement of the nut.

In assembling the device the hub is first placed upon the axle and thenthe washer is slipped over the threaded end into engagement with theshoulder 7 and the squared portion 4. The nut is then threaded upon theend of the axle and the ring subsequently threaded into the washer so asto seat upon the annular flange of the nut. The dust cap is then placedin position as shown to conceal the nut and ring to prevent the latterfrom becoming disengaged with the nut.

Having thus described the invention, what I claim is:

In combination, an axlev having a Squared portion and a threaded end, acup -like washer having a squared opening to engage the squared portionand being internally threaded, a nut mounted upon the threaded end ofthe axle and seated in the cup, said nut having an annular flange tohold the washer upon the squared portion of the axle, a nut threaded inthe washer and surrounding the first-mentioned nut, said last nutadapted to engage the annular fiange of the first nut to prevent thedisengagement of said first nut from the axle, and means to conceal thefirst and second nuts, said means preventing the disengagement of thesecond nut.

In testimony whereof I aflix my signature in presence of two witnesses.

HERMAN E. OLIVER.

Witnesses GRANT SIMPSON, JOHN E. CALLIcoA'r.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

